Romancing The Stone (1984)

Joan Wilder (Kathleen Turner) writes fantastic stories of love and adventure. Unfortunately, her own life is nowhere near as exciting as what she writes. An opportunity to change all that comes when her sister is kidnapped in Colombia. Her trip down there will lead her into a much bigger adventure than she ever anticipated. Trapped in Colombia, she's rescued by a man who could've come straight out of one of her novels, an adventurer named Jack Colton (Michael Douglas). Now she and Jack are on the run, trying to save her sister while staying one step ahead of both the Colombians and an American thug named Ralph (Danny DeVito).